Nano Archive

Multipod ZnO 3D microstructures

Li, Chun and Fang, Guojia and Guan, Wenjie and Zhao, Xingzhong (2007) Multipod ZnO 3D microstructures. Materials Letters, 61 (14-15). 3310 - 3313.

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ZnO 3D microstructures with nano-multipod have been self-assembly synthesized on a post-annealed Ag-coated silicon substrate by sintering the mixture of ZnO and graphite powders in Ar flow. SEM images show that the microstructure has a spherical core and multiple radial nanorods grown around its outside with diameter of about 1–2 μm and 50–200 nm, respectively. XRD investigation shows the ZnO multipods are of a wurtzite structure. The room temperature photoluminescence spectrum of the microstructures reveals a strong broad green emission band at 530 nm. It is found that the post-deposition annealing treatment of the Ag thin film is a key factor to control the formation of ZnO 3D microstructures. The possible growth process based on VLS mechanism is proposed.

Item Type:Article
Uncontrolled Keywords:Nanomaterials; Crystal growth; ZnO microstructures
Subjects:Material Science > Nanostructured materials
ID Code:6728
Deposited By:SPI
Deposited On:09 Feb 2010 10:42
Last Modified:09 Feb 2010 10:42

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